Image pickup device

An image pickup device, comprising an optical characteristics changing unit, an optical system containing an objective lens and for leading a light from said objective lens to said optical characteristics changing unit, and one image pickup element for receiving a light via said optical characteristics changing unit, wherein said optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and each of said dividing units has a first region to select a specific wavelength from the light coming from said optical system and a second region where optical characteristics of the light from said optical system are not changed,

• wherein a part of said light and another part of said light pass through said first region and said second region respectively at the same time, wherein said image pickup element receives a light passing through said first region and a light passing through said second region at the same time and said image pickup element acquires an image which includes an optical spectral image part with a specific wavelength and an image part with no changing optical characteristics.